CN101252711B - PHS base station wireless access controller - Google Patents
PHS base station wireless access controller Download PDFInfo
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- CN101252711B CN101252711B CN2008101019762A CN200810101976A CN101252711B CN 101252711 B CN101252711 B CN 101252711B CN 2008101019762 A CN2008101019762 A CN 2008101019762A CN 200810101976 A CN200810101976 A CN 200810101976A CN 101252711 B CN101252711 B CN 101252711B
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Abstract
The invention discloses a personal handphone system base station wireless access controller, which comprises a central processor module, a signaling and service data exchanging module, a digital trunk module, a base station interface module, a voice encoding and decoding module, a software signaling processing module, a synchronized module and a power and long-distance power supply module. Based on the wireless transmission technology of WLAN802.11, a long-distance, remote place and multi-spot distribution type wireless access and mobile networking can be realized through the personal handphone system base station wireless access controller, thus great convenience is provided for remote districts and enterprises not convenient to establish wired transmission networks, and simultaneously, the construction cost can be saved greatly.
Description
Technical field
The present invention relates to a kind of PHS (Personal Handyphone System) base station wireless access controller, mainly be applicable to enterprise-level radio communication private network technology, the services such as mobile voice communication, broadband wireless data transmission, mobile command scheduling, personnel positioning tracking and note of customization are provided for enterprise.
Background technology
At present, the base station controller that is applied to the PHS Personal Handyphone System(PHS) communications field all is based on the telecommunication public network platform development, be embedded in the local side access switching equipment of large-scale telecommunication public network with veneer grafting form mostly, and all be that line access mode is arranged, can't realize strange land multiple spot distributed networking communication for enterprise, system configuration is complicated and single, is not suitable for the enterprise level mobile communication requirement of arranging net of convenient simple and easy cheapness flexibly.
Summary of the invention
The object of the present invention is to provide a kind of PHS base station wireless access controller, it is based on the Radio Transmission Technology of WLAN802.11, can realize that long-range strange land multiple spot distributed wireless inserts and mobile networking, for some remote districts and enterprise that is not easy to build cable transmission network brings very big facility, can save construction cost greatly simultaneously.
For reaching above-mentioned purpose, the invention provides a kind of PHS base station wireless access controller, it comprises:
One central processing unir module, it carries out control and management to whole base station controller, specifically comprises: device hardware initialization and plate carry mobile exchange of management, equipment timer-controlled self-inspection and maintenances etc. such as paging between the base station of cellphone subscriber under processing, the mobile subscriber's of management, the system remote network management data of the status monitoring of analyzing and processing, each interface module of software download, exchange of signaling and logic control, system synchronization and remote feeding electricity the authentication calculations analysis, this equipment, roaming, switching;
One signaling and business datum Switching Module, it is connected by circuit with the central processing unir module, up BTS service data and call signaling and descending swap data, call signaling and webmaster signaling are carried out programme-controlled exchange and processing, and the corresponding conversion of finishing programme-controlled exchange and base station ISDN (integrated services digital network) equipment room command transmitting, the part signaling is analyzed and local processing; Simultaneously, HDLC (High-Level Data Link Control) passage is carried out control and management;
One digital trunk moudle, it is connected by circuit with the business datum Switching Module with described signaling, for wireless access service in base station data and call signaling provide the programme-controlled exchange transmission channel, additional webmaster of mobile communication and note data are transmitted on the switching time slot of stipulating.
The port of this digital trunk moudle is an e1 port, can directly be multiplexed on the standard light transmission equipment;
One IP transport gateway module, it is connected by circuit with business datum Switching Module, digital trunk moudle with signaling respectively, data slot on the digital trunk moudle of user side standard TDM (time division multiplexing) mode work and signalling time slot are multiplexed on the IP mobile platform by direct extraction of IP coffret, have realized that transmission is crossed between E1 and the IP; Simultaneously, at network side the IP data are carried out subpackage and handle and the reconstruction of E1 time slot, thereby finished the conversion that traditional TDM numeral exchange is transferred to advanced broadband ethernet communication, also established physical basis from wired wireless access that is linked into for base station controller;
The Ethernet transmission standard of described IP transport gateway module is the IEEE-802.3 standard, and the transmission standard of mobile IP platform is the IEEE-802.11 standard;
One base-station interface module, it is connected by circuit with the central processing unir module, and this base-station interface module is carried out PERCOM peripheral communication by the BRI (2B+D basic rate interface) of ISDN with the base station of being controlled; This interface can support enterprise network PHS10 milliwatt base station to insert, and also can support the access of telecommunication public network PHS500 milliwatt base station; This interface can carry out flexible configuration by 4,8,12, the 16 tunnel, and carries out telecommunication with signal and power supply conllinear transmission manner; This interface has also designed the line synchronization communication channel on its M passage except professional B channel, signaling D passage are provided;
One encoding and decoding speech module, it is connected by circuit with the central processing unir module, it is the information source data processing module that utilizes ADPCM/PCM (adaptive differential pulse-code modulation/pulse code modulation) compress speech encoding and decoding technique, traditional ISDN (2B+D) Traffic Channel can be extended to 4 road speeches promptly from 2 road speeches: 4B+D, on same telephone wire, increase by one times of volume of business, improved the service efficiency of circuit;
This encoding and decoding speech module is mainly carried out two-way encoding and decoding conversion to base station up ADPCM compress speech data and the descending PCM speech code stream of programme-controlled exchange, be that mobile phone once produces DTMF (dual-tone multifrequency) with two-stage dialing and FSK (frequency shift keying) Data Detection is handled simultaneously, this module parallel processing simultaneously up-downgoing voice channel supports DTMF to send and the MFC multifrequency is exhaled control; It also can be the PHS mobile phone wireless data transmission channel is provided;
One software signaling processing module, it is followed and exchanges three layers of Q.931 signaling, and audio call flow process, private system webmaster OAM (oam) signaling, note SMS (mobile sms service) and the message such as number biography and location of network exchange side and base station user side are handled; Simultaneously mobile phone identification, position paging, the roaming of system's up-downgoing are switched and manage;
One FPGA (field programmable gate array) module, it is connected by circuit with business datum Switching Module and encoding and decoding speech module with central processing unir module, signaling respectively; Finish the hardware addressing of entire controller, the bus time slot allocation and the control logic of voice, signaling, number biography, location and notes are managed, and control and treatment is carried out in system synchronization encryption etc.
One synchronous module, it is connected by circuit with the central processing unir module, guarantee between long-range strange land multiple spot base station controller and the distribution subnet the base station synchronously; The synchronizing signal of this module transmits by the hardware interrupts triggering mode in real time from the line synchronization communication channel of base-station interface module; Simultaneously, but setting-up time carries out the automatic same step calibration of the whole network, also can carry out real time remote simultaneous operation to this module according to the webmaster requirement certainly;
This synchronization module is GPS (global positioning system) synchronization module or local synchronous clock module;
Described GPS synchronization module produces the required line synchronization clock reference in base station according to this machine GPS pulse per second (PPS) PPS, and this benchmark is owing to be locked in the time service of global synchronization satellite, therefore, can guarantee base station synchronization between long-range strange land multiple spot base station controller and the distribution subnet;
Described local synchronous clock module is applicable to no gps signal zone; the whole base station controllers that can be under the same switching equipment provide clock reference; and carry out the transmission of point-to-multipoint in the mode of RS422; guarantee the base station air interface synchronization between the base station controller, thereby guaranteed that the seamless roam of mobile phone between base station controller switches.
One power supply and remote power feeding module, it comprises device power supply (DPS) module and the base station far-end supply module that connects by circuit, and this device power supply (DPS) module is connected by circuit with the encoding and decoding speech module, for base station controller provides DC power supply; This base station far-end supply module is connected with FPGA, for the base station far-end power supply provides DC power supply; The base station remote power feeding adopts advanced power system telecommunications technology, common ISDN modulated communication signal is coupled on the 2 core power lines, and together sends to the base station, and promptly system group network is no longer necessary for a large amount of base stations and sets up the searching power supply.
PHS base station wireless access controller provided by the invention, main effect is exactly that the telecommunications that the past is traditional concentrates the tree-like networking model of exchange of management to be split as loose star distributed networking pattern, make to move to exchange to become a plurality of parallel microcellulor digital communication subnets with wireless communication networks, the flexible networking that is fit to enterprise and branch thereof covers; Particularly the wireless access function of this product can be can't cable wiring manufacture wireless telecommunications nets such as enterprise, remote mountain areas, mobile operating enterprise, operation on the sea unit, on-the-spot interim emergency communication brought huge facility to the access of backbone network, greatly saved the cost of construction and cable.
Next, the base station remote power feeding technology of the present invention's employing also is very easy to occasions such as enterprise customer's networking, particularly underground wireless communication, the open-air communication of army and is difficult to base station searching power supply.
In addition, the ADPCM/PCM encoding and decoding speech technology that the present invention adopts is that latest generation PHS baseband processing chip has been built brand-new access platform, make traditional 2B+D traffic channel capacity expand 1 times and become 4B+D, improved the circuit service efficiency that Personal Handyphone System(PHS) inserts greatly.
At last, the present invention has introduced new technical functionalitys such as GPS is synchronous, IP gateway transmission again on the basis of conventional P HS base station controller.
Description of drawings
Fig. 1 is a PHS base station wireless access controller structural representation provided by the invention.
Embodiment
Below in conjunction with Fig. 1, describe a preferred embodiment of the present invention in detail.
As shown in Figure 1, be PHS base station wireless access controller structural representation provided by the invention, it comprises:
One central processing unir module 1, it carries out control and management to whole base station controller, specifically comprises: device hardware initialization and plate carry mobile exchange of management, equipment timer-controlled self-inspection and maintenances etc. such as paging between the base station of cellphone subscriber under processing, the mobile subscriber's of management, the system remote network management data of the status monitoring of analyzing and processing, each interface module of software download, exchange of signaling and logic control, system synchronization and remote feeding electricity the authentication calculations analysis, this equipment, roaming, switching;
One signaling and business datum Switching Module 2, it is connected by circuit with central processing unir module 1, up BTS service data and call signaling and descending swap data, call signaling and webmaster signaling are carried out programme-controlled exchange and processing, and the corresponding conversion of command transmitting Q.921/Q.931 and between the isdn device of base station of finishing programme-controlled exchange, the part signaling analyzed with local handle; Simultaneously, 8 road HDLC passages are carried out control and management;
One digital trunk moudle 3, it is connected by circuit with described signaling and business datum Switching Module 2, E1/2M (30B+D) the programme-controlled exchange transmission channel of standard is provided for wireless access service in base station data and call signaling, the speech coding pattern is the pcm stream of standard, call signaling meets the ITU-Q.931/Q.921 agreement, and additional webmaster of mobile communication and note data are transmitted on the switching time slot of regulation.
The port of this digital trunk moudle is an e1 port, can directly be multiplexed on the standard light transmission equipment;
One IP transport gateway module 4, it is connected by circuit with signaling and business datum Switching Module 2, digital trunk moudle 3 respectively, data slot on the digital trunk moudle of user side standard TDM mode work and signalling time slot are multiplexed on the IP mobile platform by direct extraction of IP coffret, have realized that transmission is crossed between E1 and the IP; Simultaneously, at network side the IP data are carried out subpackage and handle and the reconstruction of E1 time slot, thereby finished the conversion that traditional TDM numeral exchange is transferred to advanced broadband ethernet communication, also established physical basis from wired wireless access that is linked into for base station controller;
The Ethernet transmission standard of described IP transport gateway module 4 is the IEEE-802.3 standard, and the transmission standard of mobile IP platform is the IEEE-802.11 standard;
One base-station interface module 5, it is connected by circuit with central processing unir module 1, and this base-station interface module 5 is carried out PERCOM peripheral communication by the BRI (2B+D basic rate interface) of ISDN with the base station of being controlled; This interface can support enterprise network PHS10 milliwatt base station to insert, and also can support the access of telecommunication public network PHS500 milliwatt base station; This interface can carry out flexible configuration by 4,8,12, the 16 tunnel, and carries out telecommunication with signal and power supply conllinear transmission manner.This interface has also designed the line synchronization communication channel on its M passage except professional B channel, signaling D passage are provided;
One encoding and decoding speech module 6, it is connected by circuit with central processing unir module 1, it is that to utilize ADPCM/PCM compress speech encoding and decoding technique on the DSP hardware platform be the information source data processing module that the special exploitation of up-to-date PHS base station baseband process chip forms, traditional ISDN (2B+D) Traffic Channel can be extended to 4 road speeches promptly from 2 road speeches: 4B+D, on same telephone wire, increase by one times of volume of business, improved the service efficiency of circuit;
This encoding and decoding speech module 6 is mainly carried out two-way encoding and decoding conversion to base station up 32kbps ADPCM compress speech data and the descending 64kbps PCM speech code stream of programme-controlled exchange, be that mobile phone once produces the DTMF dual-tone multifrequency with two-stage dialing and fsk data detects processing simultaneously, 64 voice channels of this module parallel processing up-downgoing simultaneously support DTMF to send and the MFC multifrequency is exhaled control; PIAFS number according to PHS air interface standard RCR-STD28 passes protocol requirement, and it also can be the wireless data transmission channel that the PHS mobile phone provides 32kbps/64kbps;
One software signaling processing module, it is followed and exchanges three layers of Q.931 signaling, and audio call flow process, private system webmaster OAM signaling, note SMS and the message such as number biography and location of network exchange side and base station user side are handled; Simultaneously mobile phone identification, position paging, the roaming of system's up-downgoing are switched and manage.
One FPGA module 7, it is connected by circuit with central processing unir module 1, signaling and business datum Switching Module 2 and encoding and decoding speech module 6 respectively; Finish the hardware addressing of entire controller, the bus time slot allocation and the control logic of voice, signaling, number biography, location and notes are managed, and control and treatment is carried out in system synchronization encryption etc.
One synchronous module 8, it is connected by circuit with central processing unir module 1 and FPGA module 7 respectively, guarantee between long-range strange land multiple spot base station controller and the distribution subnet the base station synchronously; The synchronizing signal of this module transmits by the hardware interrupts triggering mode in real time from the line synchronization communication channel of base-station interface module; Simultaneously, can follow the telecommunication public network standard, but 2 o'clock midnights of every day setting-up time carry out the automatic same step calibration of the whole network, also can carry out real time remote simultaneous operation to this module certainly according to the webmaster requirement;
This synchronization module 8 is GPS synchronization module or local synchronous clock module;
Described GPS synchronization module produces the required line synchronization clock reference in base station according to this machine GPS pulse per second (PPS) PPS, and this benchmark is owing to be locked in the time service of global synchronization satellite, therefore, can guarantee base station synchronization between long-range strange land multiple spot base station controller and the distribution subnet;
Described local synchronous clock module is applicable to no gps signal zone; the whole base station controllers that can be under the same switching equipment provide clock reference; and carry out the transmission of point-to-multipoint in the mode of RS422; guarantee the base station air interface synchronization between the base station controller, thereby guaranteed that the seamless roam of mobile phone between base station controller switches.
One power supply and remote power feeding module, it comprises device power supply (DPS) module 91 and the base station far-end supply module 92 that connects by circuit, and this device power supply (DPS) module 91 and encoding and decoding speech module 6 are connected by circuit, for base station controller provides direct current-48V power supply; This base station far-end supply module 92 is connected with FPGA module 7, for the base station far-end power supply provides direct current-96V power supply; The base station remote power feeding adopts advanced power system telecommunications technology, common ISDN modulated communication signal is coupled on the 2 core power lines, and together sends to the base station, and promptly system group network is no longer necessary for a large amount of base stations and sets up the searching power supply.In the present embodiment, this power supply and remote power feeding module remote power feeding ability can reach 6 kilometers.
PHS base station wireless access controller provided by the invention, main effect is exactly that the telecommunications that the past is traditional concentrates the tree-like networking model of exchange of management to be split as loose star distributed networking pattern, make to move to exchange to become a plurality of parallel microcellulor digital communication subnets with wireless communication networks, the flexible networking that is fit to enterprise and branch thereof covers; Particularly the wireless access function of this product can be can't cable wiring manufacture wireless telecommunications nets such as enterprise, remote mountain areas, mobile operating enterprise, operation on the sea unit, on-the-spot interim emergency communication brought huge facility to the access of backbone network, greatly saved the cost of construction and cable.
Next, the base station remote power feeding technology of the present invention's employing also is very easy to occasions such as enterprise customer's networking, particularly underground wireless communication, the open-air communication of army and is difficult to base station searching power supply.
In addition, the ADPCM/PCM encoding and decoding speech technology that the present invention adopts is that latest generation PHS baseband processing chip (AK2495) has been built brand-new access platform, make traditional 2B+D traffic channel capacity expand 1 times and become 4B+D, improved the circuit service efficiency that Personal Handyphone System(PHS) inserts greatly.
At last, the present invention has introduced new technical functionalitys such as GPS is synchronous, IP gateway transmission again on the basis of conventional P HS base station controller, not only applicable to the access of enterprise network 10 milliwatt base stations, also can be used for the access of telecommunication public network 500 milliwatt base stations, is the base station controller of the PHS base station compatible type able to programme of a polytypic.
Claims (10)
1. a PHS base station wireless access controller is characterized in that, specifically comprises:
One central processing unir module, it carries out control and management to whole base station controller;
One signaling and business datum Switching Module, it is connected by circuit with the central processing unir module, and up BTS service data and call signaling and descending swap data, call signaling and webmaster signaling are carried out programme-controlled exchange and processing;
One digital trunk moudle, it is connected by circuit with the business datum Switching Module with described signaling, for wireless access service in base station data and call signaling provide the programme-controlled exchange transmission channel, transmits on the switching time slot of regulation;
One IP transport gateway module, it is connected by circuit with business datum Switching Module, digital trunk moudle with signaling respectively, and data slot on the digital trunk moudle of user side standard time division multiplexing mode work and signalling time slot are multiplexed on the IP mobile platform by direct extraction of IP coffret; And at network side the IP data are carried out subpackage and handle and the reconstruction of E1 time slot, finish the conversion that traditional time division multiplexing numeral exchange is transferred to advanced broadband ethernet communication;
One base-station interface module, it is connected by circuit with the central processing unir module, and this base-station interface module is carried out PERCOM peripheral communication by the basic rate interface of ISDN with the base station of being controlled; And carry out telecommunication with signal and power supply conllinear transmission manner;
One encoding and decoding speech module, it is connected by circuit with the central processing unir module, and it is the information source data processing module that utilizes the compress speech encoding and decoding technique of adaptive differential pulse-code modulation/pulse code modulation, can expand the ISDN Traffic Channel;
One software signaling processing module, it is followed and exchanges three layers of Q.931 signaling, and audio call flow process, private system webmaster OAM signaling, note SMS and the information such as number biography and location of network exchange side and base station user side are handled;
One FPGA module, it is connected by circuit with business datum Switching Module and encoding and decoding speech module with central processing unir module, signaling respectively, finish the hardware addressing of entire controller equipment, the bus time slot allocation of voice, signaling, number biography, location and note and control logic management, the synchronous crypto-operation of control processing system;
One synchronous module, it is connected by circuit with the central processing unir module, guarantee between long-range strange land multiple spot base station controller and the distribution subnet the base station synchronously; The synchronizing signal of this module transmits by the hardware interrupts triggering mode in real time from the line synchronization communication channel of base-station interface module.
2. PHS base station wireless access controller as claimed in claim 1 is characterized in that, the Ethernet transmission standard of described IP transport gateway module is the IEEE-802.3 standard, and the transmission standard of mobile IP platform is the IEEE-802.11 standard.
3. PHS base station wireless access controller as claimed in claim 1 is characterized in that described base-station interface module is provided with the basic rate interface of 2B+D, and wherein, the B channel is a signalling path for Traffic Channel, D passage are provided.
4. PHS base station wireless access controller as claimed in claim 3 is characterized in that, is provided with the line synchronization communication channel on the M passage of the basic rate interface of described base-station interface module.
5. PHS base station wireless access controller as claimed in claim 1, it is characterized in that, described encoding and decoding speech module parallel processing simultaneously up-downgoing voice channel, adaptive differential pulse-code modulation compress speech data and the programme-controlled exchange descending pulse code modulation speech code stream up to the base station carry out two-way encoding and decoding conversion.
6. PHS base station wireless access controller as claimed in claim 5 is characterized in that, described encoding and decoding speech module provides wireless data transmission channel for PHS mobile phone.
7. PHS base station wireless access controller as claimed in claim 1 is characterized in that, described synchronization module is GPS synchronization module or local synchronous clock module;
Described GPS synchronization module produces the required line synchronization clock reference in base station according to this machine GPS pulse per second (PPS), is locked in the time service of global synchronization satellite;
Described local synchronous clock module is applicable to no gps signal zone, for the whole base station controllers under the same switching equipment provide clock reference, and carries out the transmission of point-to-multipoint in the mode of RS422.
8. PHS base station wireless access controller as claimed in claim 1, it is characterized in that, described base station wireless access controller also comprises a power supply and remote power feeding module, and this power supply comprises device power supply (DPS) module and the base station far-end supply module that is connected by circuit with the remote power feeding module;
This device power supply (DPS) module is connected by circuit with the encoding and decoding speech module, for base station controller provides DC power supply;
This base station far-end supply module is connected with FPGA, for the base station far-end power supply provides DC power supply.
9. PHS base station wireless access controller as claimed in claim 1 is characterized in that the port of described digital trunk moudle is an e1 port, can directly be multiplexed on the standard light transmission equipment.
10. PHS base station wireless access controller as claimed in claim 1 is characterized in that, described software signaling processing module also manages mobile phone identification, position paging, the roaming switching of system's up-downgoing.
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| CN2008101019762A CN101252711B (en) | 2008-03-14 | 2008-03-14 | PHS base station wireless access controller |
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| CN102045828A (en) * | 2009-10-22 | 2011-05-04 | 中兴通讯股份有限公司 | Method and equipment for sending voice information |
| CN105225624B (en) * | 2015-10-21 | 2018-02-27 | 贵州久联民爆器材发展股份有限公司 | A kind of apparatus and method of blasting charge weight information strange land simultaneous display |
| CN107786457B (en) * | 2017-09-15 | 2020-11-20 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | High-speed Ethernet deterministic high-bandwidth data transmission method |
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Non-Patent Citations (3)
| Title |
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| JP特开2006-93943A 2006.04.06 |
| 郭庆东等.无线市话PHS的组网技术.《电力系统通信》.2005,第26卷(第150期), * |
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